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3103 N IH 35, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed17,860 sqftBuilt 1975

Property at a Glance

This home is estimated between $3,798,607 and $5,723,603, with a best estimate of $4,804,953. That places the property above the R20IS - Storage Warehouse-e Round Rock median of $2,255,012, in a neighborhood that declined 5.4% over the past year.

Estimated Value Range

$3,798,607 $5,723,603
Best Estimate
$4,804,953
WCAD Value
$2,940,872
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R20IS - Storage Warehouse-e Round Rock. The estimated range of $3,798,607 and $5,723,603 should be treated as a rough guide.

Comparable Properties (5)

3 bed 18,436 sqft Built 1950
Raw Value $5,480,164
Adjusted Value $5,363,985

Adjusted -$116,179 for 576 sqft less living space. Net adjustment: -$116,179.

3 bed 9,180 sqft Built 1977
Raw Value $2,655,025
Adjusted Value $4,405,777

Adjusted +$1,750,752 for 8,680 sqft more living space. Net adjustment: +$1,750,752.

3 bed 7,144 sqft Built 1975
Raw Value $3,562,191
Adjusted Value $5,723,603

Adjusted +$2,161,412 for 10,716 sqft more living space. Net adjustment: +$2,161,412.

3 bed 9,000 sqft Built 1970
Raw Value $3,017,895
Adjusted Value $4,804,953

Adjusted +$1,787,058 for 8,860 sqft more living space. Net adjustment: +$1,787,058.

3 bed 8,065 sqft Built 1970
Raw Value $1,822,960
Adjusted Value $3,798,607

Adjusted +$1,975,647 for 9,795 sqft more living space. Net adjustment: +$1,975,647.

The Neighborhood

This home is valued 30.4% above the R20IS - Storage Warehouse-e Round Rock median of $2,255,012. With 12 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 5.4% over the past year.

R20IS - Storage Warehouse-e Round Rock

above average
12 Properties
$2,255,012 Median Value
-5.4% YoY Change
0% Have Pool
0% Have Garage
This Home
$2,940,872
Median
$2,255,012

This home is +30.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $52,914 across all districts. With a homestead exemption claimed, that drops to $51,121 — saving $1,793 per year. That's $4,260 per month a buyer should budget. The assessed value increased roughly in line with the neighborhood, so a tax protest is unlikely to yield significant savings.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$26,265
Round RockCity0.3720%$10,940
Williamson CountyCounty0.3694%$10,865
Austin Community Collegespecial0.1034%$3,041
Williamson County FM/RdCounty0.0443%$1,304
Upper Brushy Creek WCIDWater0.0170%$500
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$52,914

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $4,804,953 would pay approximately $29,992 per month (principal and interest only, excluding taxes and insurance).

Data sourced from Williamson County Appraisal District (WCAD), Texas Education Agency (TEA), and Federal Reserve Economic Data (FRED). Assessment values reflect the appraisal district's estimate, not market sale prices. Report generated 4/18/2026.

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